Timepiece component and timepiece

Abstract

The present invention addresses the problem of providing: a timepiece member which is difficult to peel by improving the adhesion between a protective film and a color matching layer when the protective film and the color matching layer are laminated on the surface of a base material; and a timepiece. The timepiece component is characterized by comprising: a base material; a protective film formed on the surface of the substrate by wet plating; and a decorative film formed on the surface of the protective film by dry plating, the decorative film being a laminated film in which a plurality of layers including a first layer in contact with the protective film are laminated, the main material constituting the first layer being the same as the main material constituting the protective film.

Description

Technical Field

[0001] The present invention relates to a timepiece component and a timepiece. Background Art

[0002] Patent document 1 discloses a watch component such as a dial, which has a coloring layer composed of a plurality of oxide films stacked on a substrate having a metallic luster, thereby having an appearance and texture equivalent to that when using a precious metal material, and can reduce costs compared to when using a precious metal material.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2023-4622 Summary of the invention

[0006] Problems to be solved by the invention

[0007] However, when brass or the like is used as the dial substrate, the substrate may rust. Therefore, it is considered to form a protective film of nickel or the like on the surface of the substrate by wet plating, and to stack a plurality of oxide films functioning as a coloring layer on the surface of the protective film by vacuum evaporation.

[0008] However, the inventors have found that, after the protective film is formed by wet plating, the toning layer is formed by vacuum evaporation. Since the surface of the protective film is inactivated, the oxide film of the first layer of the toning layer is only placed on the surface of the protective film. The adhesion between them is low, and it is likely to peel off when tools or the like contact the dial surface during assembly or maintenance of the watch. Therefore, there is a need for a watch component that can improve the adhesion between the protective film and the toning layer and make it difficult to peel off when the protective film and the toning layer are laminated on the surface of the substrate, and a watch using the watch component.

[0009] Means for solving problems

[0010] The watch component disclosed in the present invention is characterized in that it comprises: a substrate; a protective film formed on the surface of the substrate by wet plating; and a decorative film formed on the surface of the protective film by dry plating, wherein the decorative film is a laminated film formed by laminating a plurality of layers including a first layer connected to the protective film, and the main material constituting the first layer is the same as the main material constituting the protective film.

[0011] A timepiece disclosed in the present invention is characterized by including the above-mentioned timepiece component. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1This is a front view showing a timepiece having a dial according to the first embodiment.

[0013] Figure 2 This is a cross-sectional view showing the dial according to the first embodiment.

[0014] Figure 3 It is a figure which shows the film structure of the dial of 1st Embodiment.

[0015] Figure 4 It is a figure which shows the peeling test result of a dial.

[0016] Figure 5 It is a diagram showing the film structure of the dial according to the second embodiment.

[0017] Figure 6 This is a cross-sectional view showing a dial according to a third embodiment.

[0018] Figure 7 It is a diagram showing the film structure of the dial according to the third embodiment. DETAILED DESCRIPTION

[0019] Hereinafter, a timepiece 1 according to an embodiment of the present disclosure will be described based on the drawings.

[0020] Figure 1 1 is a front view showing a timepiece 1 having a dial 10 as a timepiece component according to the first embodiment. The timepiece 1 is a wristwatch worn on a user's wrist, and includes a metal outer case 2, and the dial 10 is arranged on the inner circumference of the outer case 2. The opening on the front side of the two openings of the outer case 2 is closed by a cover glass, and the opening on the back side is closed by a back cover. Furthermore, the timepiece 1 includes: a movement (not shown) housed in the outer case 2; a second hand 3, a minute hand 4, and an hour hand 5 as hands indicating time information; a crown 7; an A button 8; and a B button 9.

[0021] The dial 10 is provided with an index 12. The index 12 of the present embodiment is a bar-shaped index, but Roman numerals or Arabic numerals may be used, and the type of index is not limited to a bar-shaped index.

[0022] In the following description, the surface of each component refers to the surface on the cover glass side, and the back surface of each component refers to the surface on the back cover side.

[0023] [dial]

[0024] Figure 2 is a schematic cross-sectional view of a dial 10 as a watch component. Figure 3 It is a diagram showing the material, film forming method, and film thickness of each film of the dial 10 .

[0025] The dial 10 includes a substrate 20 , a protective film 21 formed on the surface of the substrate 20 , a decorative film 30 composed of a plurality of layers stacked on the surface of the protective film 21 , and a top coating film 40 formed on the surface of the decorative film 30 .

[0026] The base material 20 is a metal substrate that becomes the base material of the dial 10. The base material 20 is, for example, a brass plate having a thickness of about 400,000 nm = about 0.4 mm. It should be noted that the material of the base material 20 is not limited to brass, but is preferably a metal that is cheaper than the precious metal, such as nickel silver, Al, Ti, V, Cr, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, In, Sn, Hf, Ta, W, Bi, Mg, or an alloy containing at least one of them. It should be noted that a small amount of precious metal may also be contained.

[0027] The protective film 21 is a Ni-plated layer formed on the surface of the substrate 20 by wet plating such as electroplating. That is, the protective film 21 is a film whose main material is Ni, for example, a film in which the content of Ni as a main component is 99% or more and the content of other components is about 1%. In addition, as long as the protective film 21 can protect the brass substrate 20 and prevent the substrate 20 from rusting, the content of Ni as a main component may be less than 99%. Furthermore, since the protective film 21 is formed by wet plating, it is excellent in mass productivity.

[0028] The thickness of the protective film 21 is, for example, about 300 nm. It should be noted that the main material of the protective film 21 is not limited to Ni, and any material that can achieve the functions required of the protective film 21, such as rust prevention, can be used, and any material that can be wet-plated, such as Au, Ag, and Rh, can be used. In particular, Ni has the advantage of being able to reduce costs compared to Au, Ag, and Rh.

[0029] The decorative film 30 is provided to adjust the appearance and texture of the dial 10, and in this embodiment, it is composed of seven layers stacked in sequence from the protective film 21. That is, the decorative film 30 includes a first layer 31, a second layer 32, a third layer 33, a fourth layer 34, a fifth layer 35, a sixth layer 36, and a seventh layer 37 stacked in sequence from the surface of the protective film 21.

[0030] It should be noted that in this embodiment, the film refers to a portion formed to achieve a predetermined function. For example, the protective film 21 and the top coating film 40 are single-layer films formed of a single material. On the other hand, the decorative film 30 is a laminated film formed by laminating a plurality of layers of different materials in order to adjust the decoration of the dial 10, specifically, to adjust the color, gloss, etc. of the dial 10.

[0031] The protective film 21 has a function of protecting the base material 20 , but may also have other functions, for example, a function of contributing to the decoration of the dial 10 together with the decorative film 30 .

[0032] The decorative film 30 as a whole only needs to have the function of decorating the dial 10 , and some of the first layer 31 to the seventh layer 37 may not directly contribute to the decoration.

[0033] The first layer 31 to the seventh layer 37 constituting the decorative film 30 are formed by dry plating such as vacuum evaporation, sputtering, and ion plating. The specific film forming method by dry plating may be set according to the material and characteristics of each layer.

[0034] The first layer 31 is formed on the surface of the protective film 21 by dry plating such as vacuum evaporation. The main material constituting the first layer 31 is the same material as the main material constituting the protective film 21, that is, Ni. The wet-plated Ni of the protective film 21 and the dry-plated Ni of the first layer 31 are the same material, and a metallic bond is generated, so the adhesion can be improved compared with the case where an oxide film is formed on the surface of the protective film 21. That is, the first layer 31 is a layer constituting the decorative film 30, but it is mainly provided to improve the adhesion with the protective film 21. Therefore, the first layer 31 may not contribute to the decoration, or the contribution to the decoration is small. The film thickness of the first layer 31 is, for example, about 100nm. The first layer 31 is, for example, a layer in which the content of Ni as the main component is more than 99% and the content of other components is about 1%. It should be noted that as long as the first layer 31 can ensure the required performance through the adhesion with the protective film 21, the content of Ni as the main component may be less than 99%.

[0035] The second layer 32 is formed on the surface of the first layer 31 by dry plating such as vacuum evaporation. The main material constituting the second layer 32 is Cr. Cr has a high affinity with Ni and good adhesion, and the light reflectance is as high as about 60% or more, so the design freedom of the color and gloss of the dial 10 based on the third layer 33 to the seventh layer 37 can be improved. That is, when the dial 10 is observed from the surface, due to the high reflectance of the second layer 32, the influence of the base material 20, the protective film 21, and the first layer 31 on the color of the dial 10 can be reduced, so that the color and gloss of the dial 10 can be freely designed by the structure of the third layer 33 to the seventh layer 37. Therefore, the second layer 32 has the function of improving the adhesion with the first layer 31 and the function of contributing to the decoration. The film thickness of the second layer 32 is, for example, 68.4nm. The second layer 32 is, for example, a layer in which the content of Cr as a main component is 99% or more and the content of other components is about 1%. In addition, as long as the second layer 32 can ensure required performance in terms of adhesion with the first layer 31 , light reflectivity, etc., the content of Cr as a main component may be less than 99%.

[0036] The third layer 33 to the seventh layer 37 are made of any one of a metal material, an oxide, and a fluoride, and the material and film thickness of these layers are set according to the color of the dial 10. Figure 3 The materials shown are the main materials. Figure 3 The film thickness shown is film-formed.

[0037] The third layer 33 is formed by dry plating such as vacuum evaporation on the surface of the second layer 32. The third layer 33 is made of Al2O3 and has a film thickness of, for example, 207.6 nm.

[0038] The fourth layer 34 is formed by dry plating such as vacuum evaporation on the surface of the third layer 33. The fourth layer 34 is made of Cr and has a film thickness of, for example, 7.3 nm.

[0039] The fifth layer 35 is formed by dry plating such as vacuum evaporation on the surface of the fourth layer 34. The fifth layer 35 is made of Al2O3 and has a film thickness of, for example, 111.4 nm.

[0040] The sixth layer 36 is formed by dry plating such as vacuum evaporation on the surface of the fifth layer 35. The sixth layer 36 is composed of Nb2O5 and has a film thickness of, for example, 76.8 nm.

[0041] The seventh layer 37 is formed by dry plating such as vacuum evaporation on the surface of the sixth layer 36. The seventh layer 37 is made of SiO2 and has a film thickness of, for example, 116.4 nm.

[0042] The third layer 33 to the seventh layer 37 are layers that contribute to decoration, but have such adhesion that the stacked state can be maintained without peeling between the layers.

[0043] The top coating film 40 is formed by applying an acrylic resin on the surface of the decorative film 30, specifically, on the surface of the seventh layer 37, using a spray gun or the like. The top coating film 40 is provided for the purpose of protecting the decorative film 30 and providing gloss and adjusting the color tone. The thickness of the top coating film 40 is about 50000 nm = about 0.05 mm.

[0044] According to the dial 10 of the above structure, in particular, by making the decorative film 30 Figure 3 The structure of the first layer 31 to the seventh layer 37 of the material and film thickness shown in FIG. 1 is used to set the color of the dial 10 to red. Specifically, the color is set to be red by the brightness L * =37, chroma C * =53, and the color represented by the color angle h=13.

[0045] [Peel test results]

[0046] Figure 4The results of a peel test of the watch face 10 of the first embodiment as an example and a watch face of a comparative example to measure the adhesion are shown.

[0047] The dial of the comparative example is different from the dial 10 of the first embodiment in that the first layer 31 of the decorative film 30 is SiO2, and the other structures are the same. Figure 4 The “entire surface” of the pattern means that the surface of the base material 20 is polished to form a flat surface.

[0048] The peeling test was carried out according to the following steps. Six samples were prepared as examples and comparative examples, and linear cuts were made on the surface of each sample along two intersecting directions using a cutter to divide the sample into rectangular areas of about 1 mm square. Then, a tape was attached to the surface of each sample and then peeled off to test whether the decorative film 30 was peeled off from the substrate 20.

[0049] like Figure 4 As shown in the figure, in the embodiment, the six samples did not peel off in the rectangular area divided by the cut, and it can be confirmed that they are qualified products with high adhesion of the decorative film 30. On the other hand, in the comparative example, peeling occurred in the rectangular area divided by the cut in four of the six samples. The defective products with peeling were inspected, and it can be confirmed that peeling occurred between the protective film 21 of the Ni plating layer and the first layer 31 of SiO2.

[0050] As described above, according to the dial 10 of the first embodiment and the timepiece 1 having the dial 10 , the following effects can be achieved.

[0051] That is, the protective film 21 formed on the surface of the substrate 20 and the first layer 31 of the decorative film 30 formed on the surface of the protective film 21 are formed by different methods, but since the main material is Ni, which is the same material, the adhesion can be improved through the metal bond, and the decorative film 30 can be prevented from peeling off from the protective film 21.

[0052] Since the protective film 21 is formed of Ni by wet plating, mass productivity is high and the film can be formed at low cost.

[0053] [Second embodiment]

[0054] Next, refer to Figure 5 It should be noted that the dial 10 of the second embodiment is different from the dial 10 of the first embodiment only in the thickness of the second layer 32 to the seventh layer 37 of the decorative film 30, and the other structures are the same as those of the first embodiment, so the same symbols as those of the first embodiment are used for description.

[0055] The materials, film forming methods, and film thicknesses of the substrate 20 , the protective film 21 , the first layer 31 of the decorative film 30 , and the top coating film 40 of the dial 10 of the second embodiment are the same as those of the first embodiment, and thus description thereof will be omitted.

[0056] The materials and film forming methods of the second layer 32 to the seventh layer 37 of the decorative film 30 are the same as those of the first embodiment, and only the film thickness is different. That is, the film thickness of the second layer 32 composed of Cr is 71.15nm. The film thickness of the third layer 33 composed of Al2O3 is 88.77nm. The film thickness of the fourth layer 34 composed of Cr is 12.73nm. The film thickness of the fifth layer 35 composed of Al2O3 is 117.75nm. The film thickness of the sixth layer 36 composed of Nb2O5 is 93.71nm. The film thickness of the seventh layer 37 composed of SiO2 is 146.08nm.

[0057] According to the dial 10 of the second embodiment of the above structure, in particular, by making the decorative film 30 Figure 5 The structure of the first layer 31 to the seventh layer 37 of the material and film thickness shown in the figure sets the color of the dial 10 to purple, specifically, it is set to be purple by the brightness L * =31, chroma C * =38, color angle h=-45.

[0058] The dial 10 of the second embodiment is different from the dial 10 of the first embodiment only in the film thickness of the second layer 32 to the seventh layer 37, so it can achieve the same effect as the first embodiment. That is, since the protective film 21 and the first layer 31 are made of the same Ni, the adhesion can be improved by the metal bond, and the decorative film 30 can be prevented from peeling off.

[0059] [Third Embodiment]

[0060] Next, refer to Figure 6 and Figure 7 A dial 10C according to the third embodiment will be described.

[0061] The dial 10C includes a substrate 20, a protective film 21, a decorative film 30C, and a top coating film 40. The materials, film forming methods, and film thicknesses of the substrate 20, the protective film 21, and the top coating film 40 are the same as those of the dials 10 of the first and second embodiments, and thus the same reference numerals are used to omit description thereof.

[0062] The decorative film 30C is composed of eight layers, namely, a first layer 31 to an eighth layer 38 .

[0063] The first layer 31 is made of Ni formed by dry plating similarly to the first and second embodiments, and has a film thickness of 100 nm.

[0064] The second layer 32 is composed of Cr formed by dry plating, and its film thickness is 68.3nm. The third layer 33 is composed of Al2O3 formed by dry plating, and its film thickness is 0.23nm. The fourth layer 34 is composed of Cr formed by dry plating, and its film thickness is 8.39nm. The fifth layer 35 is composed of Al2O3 formed by dry plating, and its film thickness is 94.88nm. The sixth layer 36 is composed of TiO2 formed by dry plating, and its film thickness is 61.97nm. The seventh layer 37 is composed of Al2O3 formed by dry plating, and its film thickness is 168.78nm. The eighth layer 38 is composed of SiO2 formed by dry plating, and its film thickness is 95.32nm.

[0065] According to the dial 10C of the third embodiment having the above structure, in particular, the decorative film 30 is Figure 7 The structure of the first layer 31 to the eighth layer 38 of the material and film thickness shown in FIG. 1 sets the color of the dial 10 to green. Specifically, it is set to be green by the brightness L * =88, Chroma C * =45, color expressed by color angle h=102.

[0066] The dial 10C of the third embodiment is different from the dial 10 of the first embodiment in the material and film thickness of the second layer 32 to the eighth layer 38 of the decorative film 30C, but the protective film 21 and the first layer 31 are made of Ni as in the first embodiment. Therefore, as in the first embodiment, the adhesion can be improved by the metal bond, and the decorative film 30 can be prevented from peeling off.

[0067] [Modifications]

[0068] The main material constituting the protective film 21 and the first layer 31 is not limited to Ni, and may be, for example, Au, Ag, Rh, etc. That is, the main material constituting the protective film 21 and the first layer 31 is the same material, so any material can be used as long as it can be formed on the substrate 20 by wet plating and can be formed on the surface of the protective film 21 by dry plating, and thus has the function of protecting the substrate 20 such as rust prevention.

[0069] The main material constituting the second layer 32 is not limited to Cr, and any material having high adhesion to the first layer 31 and a reflectivity of at least a specified value may be used, and may be Al, Au, Ag, etc. That is, the reflectivity of visible light of the second layer 32 is 50% or more, preferably 60% or more, as long as the visible light passing through the second layer 32 can be reduced, and the influence of the first layer 31, the protective film 21, and the substrate 20 disposed on the back side of the second layer 32 on the color and gloss of the watch parts can be reduced.

[0070] The number, material, and film thickness of each layer after the third layer 33 are not limited to the configurations of the above-mentioned embodiments, and can be set according to the color and gloss design of the watch parts. For example, in the decorative film 30, 30C, when a layer of metal material is provided in each layer after the third layer 33 other than the first layer 31 and the second layer 32, the material is not limited to Cr, and can also be Al, Ti, V, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, In, Sn, Hf, Ta, W, Bi, Mg, etc. In addition, when an oxide or fluoride layer is provided in each layer after the third layer 33, for example, Ta2O5, SiO2, TiO2, Al2O3, ZrO2, Nb2O5, HfO2, Na5Al3F 14 , Na3AlF6, AlF3, MgF2, CaF2, BaF2, YF3, LaF3, CeF3, NdF3, etc.

[0071] Although the base material 20 is described as being made of metal, the present invention is not limited thereto, and a base material made of a material other than metal, such as synthetic resin, may be used.

[0072] In the above-mentioned embodiments, the material of the top coating film 40 provided on the surface of the decorative film 30, 30C is not limited to acrylic resin. In addition, as a watch component, the top coating film 40 may not be provided. In addition, the top coating film 40 may be provided only for the purpose of protecting the decorative film 30.

[0073] The watch parts are not limited to the dials 10 and 10C, but can be applied to various watch parts that can be observed from the outside of the watch. For example, in a skeleton model watch, it can also be applied to various watch parts that can be observed from the outside of the movement, such as a rotating weight, a wheel train, an escape wheel, a pallet fork, a wheel train support, and a rotating weight support.

[0074] Furthermore, the watch components may include the outer case 2, the crown 7, the back cover, the band, etc., which are made of metal materials.

[0075] [Summary of the present disclosure]

[0076] The watch component according to the present disclosure is characterized in that it comprises: a substrate; a protective film formed on the surface of the substrate by wet plating; and a decorative film formed on the surface of the protective film by dry plating, wherein the decorative film is a laminated film formed by laminating a plurality of layers including a first layer connected to the protective film, and the main material constituting the first layer is the same as the main material constituting the protective film.

[0077] According to the watch component disclosed in the present invention, the main material of the first layer of the protective film formed on the surface of the substrate by wet plating and the decorative film formed on the surface of the protective film by dry plating is composed of the same material, thereby improving the affinity between the protective film and the first layer, improving the adhesion between them, and preventing the decorative film from peeling off.

[0078] In addition, the protective film is formed by wet plating, so it is excellent in mass production and can also reduce costs. Furthermore, since the decorative film is a laminated film with multiple layers, each layer is formed by dry plating, so the film thickness of each layer can be set with high precision, and the color of the watch parts affected by the film thickness can be set to a desired color with high precision.

[0079] In the timepiece component of the present disclosure, the main material constituting the protective film and the first layer is preferably Ni.

[0080] According to the timepiece component disclosed in the present invention, the protective layer is formed by forming a film of Ni as a main material by wet plating, so that a protective film with a rust-proof effect can be formed at a low cost. Furthermore, the first layer of the decorative film is formed by forming a film of Ni by dry plating, so that the Ni of the protective film and the Ni of the first layer are metal-bonded, thereby improving the adhesion.

[0081] In the watch component disclosed in the present invention, the decorative film preferably has a second layer connected to the first layer, and a plurality of layers after the third layer stacked on the surface side of the second layer, and the main material constituting the second layer is a material having high adhesion to the first layer and a reflectivity of more than a specified value. According to the watch component disclosed in the present invention, the main material of the second layer of the decorative film is composed of a material having high adhesion to the first layer, so that peeling between the first layer and the second layer of the decorative film can be prevented. In addition, the main material constituting the second layer of the decorative film is composed of a material having a reflectivity of more than a specified value, so when the watch component is observed from the surface side, the first layer of the substrate, protective film, and decorative film arranged on the back side relative to the second layer can be prevented from affecting the color of the watch component. Therefore, the color of the watch component can be easily set by the material and film thickness of the third layer and later of the decorative film.

[0082] In the timepiece component of the present disclosure, the main material constituting the second layer is preferably Cr.

[0083] According to the timepiece component disclosed in the present invention, the second layer of the decorative film is composed of Cr. Therefore, by forming the first layer of the decorative film with a material having a high affinity with Cr, such as Ni, the adhesion between the first layer and the second layer can be improved, and peeling between the first layer and the second layer of the decorative film can be prevented. In addition, since the reflectivity of Cr is high, when the timepiece component is observed from the surface side, the first layer of the substrate, the protective film, and the decorative film disposed on the back side relative to the second layer can be prevented from affecting the color of the timepiece component. Therefore, the color of the timepiece component can be easily set by the material and film thickness of the third layer and later of the decorative film.

[0084] In the timepiece component of the present disclosure, the plurality of layers after the third layer preferably include a layer formed of a metal material and a layer formed of an oxide or a fluoride.

[0085] According to the timepiece component of the present disclosure, since the metal material layer and the oxide or fluoride layer are provided on the third and subsequent layers of the decorative film, the color of the timepiece component can be easily set by the material and film thickness of the third and subsequent layers.

[0086] In the watch component disclosed in the present invention, the layer formed of the above-mentioned metal material is preferably composed of a material containing at least one selected from the group consisting of Cr, Au, Ag, and Rh. According to the watch component disclosed in the present invention, since the layers after the third layer that affect the color of the watch component in the decorative film have a layer formed of a material containing at least one selected from the group consisting of Cr, Au, Ag, and Rh, the watch component can have a certain metallic luster.

[0087] In the watch component of the present disclosure, the layer formed of the above oxide or fluoride is preferably composed of a material selected from the group consisting of Ta2O5, SiO2, TiO2, Al2O3, ZrO2, Nb2O5, HfO2, Na5Al3F 14 , Na3AlF6, AlF3, MgF2, CaF2, BaF2, YF3, LaF3, CeF3 and NdF3.

[0088] According to the timepiece component of the present disclosure, the color displayed on the timepiece component can be appropriately set by adjusting the material or film thickness of the layer structure of the decorative film.

[0089] The timepiece component of the present disclosure preferably has a top coating film formed on the surface of the decorative film.

[0090] According to the timepiece component of the present disclosure, the decorative film can be protected by the top coating film, and the gloss or color tone of the timepiece component can be set.

[0091] In the timepiece component of the present disclosure, the timepiece component is preferably a component of a dial or a movement.

[0092] According to the timepiece component of the present disclosure, a predetermined color can be set for movement components such as a dial and a rotating weight.

[0093] A timepiece disclosed in the present invention is characterized by including the above-mentioned timepiece component.

[0094] According to the timepiece of the present disclosure, it is possible to provide a timepiece including a timepiece component that displays a predetermined color.

[0095] Description of Reference Numerals

[0096] 1…clock, 2…external case, 7…crown, 10…dial, 10C…dial, 20…substrate, 21…protective film, 30…decorative film, 30C…decorative film, 31…first layer, 32…second layer, 33…third layer, 34…fourth layer, 35…fifth layer, 36…sixth layer, 37…seventh layer, 38…eighth layer, 40…top coating film.

Claims

1. A watch component, characterized in that: It has: Base material; A protective film formed on the surface of the substrate by wet plating; and The decorative film is formed on the surface of the protective film by dry plating. The decorative film is a laminated film in which a plurality of layers including a first layer in contact with the protective film are laminated, and a main material constituting the first layer is the same as a main material constituting the protective film.

2. The watch component according to claim 1, wherein: The main material constituting the protective film and the first layer is Ni.

3. The timepiece component according to claim 1, wherein: The decorative film includes a second layer in contact with the first layer, and a third layer and subsequent layers stacked on the surface side of the second layer. The main material constituting the second layer is a material having high adhesion to the first layer and having a reflectivity equal to or higher than a predetermined value.

4. The timepiece component according to claim 3, wherein: The main material constituting the second layer is Cr.

5. The timepiece component according to claim 3, wherein: The plurality of layers after the third layer include a layer formed of a metal material and a layer formed of an oxide or a fluoride.

6. The timepiece component according to claim 5, wherein: The layer formed of the metal material is composed of a material including at least one selected from the group consisting of Cr, Au, Ag, and Rh.

7. The timepiece component according to claim 5, wherein: The layer formed of the oxide or fluoride is selected from Ta2O5, SiO2, TiO2, Al2O3, ZrO2, Nb2O5, HfO2, Na5Al3F 14 , Na3AlF6, AlF3, MgF2, CaF2, BaF2, YF3, LaF3, CeF3 and NdF3.

8. The timepiece component according to claim 1, wherein: It has a top coating film formed on the surface of the decorative film.

9. The timepiece component according to claim 1, wherein: The watch component is a component of a dial or a movement.

10. A timepiece, characterized in that: The device comprises the timepiece component according to claim 1 .

Images